Internal-combustion engine.



' H. A. w. DREQHSLER.

PATENTED AUG. 20.1907;

INTERNAL GOMBUSTION ENGgNE.

'APPLIGATLON- num JAN. so. 1907.

v' z SHEETS-SHEET 1.

W/TNESSES l A TTOHNEYS APPLICATION FILED JAN..30, V190'7.

.2 SHEETS-SHEET 2.

W24/maaar@ Arron/v5 ys v In the operation of' my improved engine thepipe.18 is in communication with the carburetor, orhother s suitablesource of explosive mixture, and the pipeV 28 communicates with theoutside atmosphere or with the and the gas in the cylinder below thepiston would be' I forced through theport 6 and past the valve 8 inw thespace 5V within the piston. At the end of the outward stroke the exhaustport 28 will be uncovered and the f main portion of the exhaust gaswould rush out from the explosion chamber. As'the piston starts on theinward stroke, due to the action of the ily-wheel, the

' Avalve 8 vcloses'to prevent the escape of the compressed away with. v

gas from thelspace within the piston, the valve l9`opens to admit moreof -the explosive charge to the space below the piston, andthe wrist-pin13 is brought to the .position shown in Fig. 3, whereby the explosionchamber may stillcommunicate with the outside atmosphere throughthe'piston rod and wrist-pin. As the port 7 of the piston'passcs theport 23 oi the plate :20, a highlycompressed charge `within th'e pistonru'shes out into the passage 22 and into the explosion-chamber above the.pist/bn. By this'time the further turning ofv the Wrist-pin 13 closesthe outlet through the piston rod and rush of-gasv past the igniter 25,`causes-'thc sudden in'temperature thereof and results in the ignitionand explosion f the charge, whereupon the above series ofsteps isrepeated.

The plate 20 having the port 23 'is freely movable the wall of thecylinder and may bc adjusted to any desired position. The positionoccupied bythe plate `20 determines the time at which th'c explosivechargewill' enter the explosion chamber and thus indirectly determinesthe time at which Vthe explosion will take place. By enlarging orreducing the size-of `the'portZB, the amount of the explosive chargewhich it is desired to admit to the cylinder, may be readily controlled.Thus, the plate 20, in controlling both the'amount or-tlieexplosivecharge and the time at which it is adriitted, serves as a spoedregulator, obviating the necessity of tl); employment oi on y otherregulator of any kind. By plm-i ug the explosion chamber incommunication with the-'outside atmosphere for a` brief period after themain exhaust port has been closed, the last traces 0i the exhaust gasmay be permitted to escape. The time at which the vpassage through thepiston rod will be opened au'd closed may be readily controlled by meansof the adjustment of the wrist-pin 13 within the connecting rod 14,which adjustment may be-readily secured by means of set screws or in anyother lsuitable manner.

By controlling the time of thevadmission of the explosive charge, noelectricity is needed and the complicated sparkcr usuallyl employed isentirely done The catalytic agent, preferably platinum, is -always readyfor use and-never needs any attention or repairing of any kind. 'llli'conly valves in the entire engine are the'two check valves controllingthe inlet to the cylinder and the vinlet to the hollow piston, andl asthese are very simple in their operation, it is evident at thee is verylittle liability of any of the parts of ne engine vgetting out of orderor requiring attention.-

senese I venging of the-cylinder is much more complete thaninanytwocycleengine heretofore lgnown, by reason f o f the doubleexhaust means and the baille plate 24, adjacent the inlet end of thevpassage 22.

Having thus described my invention I and desire to secure by LettersPatent:

claim as new,

and adapted to controlfone of said ports, and means for A adjusting saidport longitudinally-Tot the cylinder.

3. An internal c0inbustlon.englnc, comprising a cylinder having unexplosion chamber'at one end and a compression chamber at the other end,said cylinder being provided with passage establishing commnnicatlonbetween the compression chamber and the explosion chamber, and means foradjusting the point of communication between the passage and thecompression chamber longitudinally of the cylinder.

4. An internal combustion engine comprising-a cylinder having anexplosion chamber at one end and a compression chamber at the oppositeend, means for admitting the' charge to the compression chamber, ahollow Vpiston within said cylinder and having n valve-'controlled portcommunieating with said compression end of the eylinder,.a port in'ilxewall ot the piston whereby the compressed charge muy escape to theexplosion end of the cylinder, and means for adjusting the outlet froi'nsaid port longltudnallyof' the cylinder.

-5. An internal combustion cnginecomprlslng a cylinder 'having :i plateembedded in the wall thereof and longitudinally adjustable, and a-,hol1o\v pistou having a port adjacent said pluie, the wall ot thecylinder being provided with u passage and the'plate b eing providedwith a. port whcreb'y the explosive charge may pass from the hollowpiston to the explosion end of the cylinder, and whereby ihc time ofsuch admission may be controlled by ihc longitudinal adjustment ot theplaie.

il. An internal combustion engine comprising a cylinder having :l pas ze inthe wall thereof und communicating with the explosion end of thecylinder, an adjustable plate vouirolling thc inlet end of said passageand provided with :i port, :i piston having a port adapted tocommunicate willi -ihc port lu the plate, whereby the time of admissionur the clim-go to Llle explosion end ot the cylinder muy be controlled,and n catalytic agent serving as an igmlcr und located in the path ofthe incoming gus.

7. All luicrnul coniblxslon engine having a-cyllnder, a cylinder headprovided with n recess thcrelh and an inlet port, a imille plaieadjacent snd cylinder bead, und a catalytic substance -wiihln saidrecess and serving to ignite the' explosive charge ns it passes betweenthe bnleplate and the cylinder head. A

S. An Internal combustion engine having a cylinder, a cylinder headprovided with n recess therein and an Inlet port adjacent said recess,:1 baille plate adjacent snldcylluder head :md lying substantiallyparallel thereto, an

iguiter within said recess and serving to ignite the explosive charge nsit passes between the baille plate and the cylinder head, und meansadjacent the inlet port for preventing the ignition of the gases in theinlet passage.

El. An infernal combustion engine, comprising :1 cylinder having anexploslon cliambcr at or-e end and a compression chamber ut the oppositeend, a passage bavlng ports communicating with said chambers and nuoutlet port intermediate the ends of the cylinder, a piston within saidcylinder and adapted to control one of the ports of said' passage sindthe outlet port, and means for adjusting the position of one of saidports longitudinally of tl1 e cyl- Inder.-

10. An internal combustion en -glue comprising a cylinder haying anexhaust port intermediate its ends, s. piston, a passage in the pistonduring a portion ot the exhaust 10 hollow piston rod adapted to gerve asan auxiliary exhaust stroke. means, and means at the outer end ot saidpiston for con- In testimony whereof. I have signed my name to thistrolling sind Passagspezication in the presence of two subscribingwitnesses.

11. An internal combustion engine comprising a cylinder, a. pistonlocated therein, a. plstonrod having a pas- HEINRICH ALBEPT WALTERDRECHSLEB" sage extending throughout its length, and n pin rotatablyWitnesses: mounted in the outer end of the piston rod, said pin beingGmonnPmnnl,

- provided with a passage adnpted-to communicate with the PAUL lhssnr.

It is hereby certified that in Letters luatent No. 864,086, grantedAugust 20; 1907, upon the application of Heinrich Albert WaiterDrechsler, of Munedorf, Switzerland, for an improvement inInternal-Combustion Engines, errors appear `in the printed specificationrequiring correction', as follows: On page 2, line 66, the word Theshould rbe inserted at the beginning of the line, and in seme line, theVword venging should 4 read scavenging; and that the said Letters atentshould be Jread with these corrections therein that the same may conformtothe record of the casein the Patent Oiee.,

Signed and sealed this 15th day of October, AID., 19Q7.

[SEAL] EDWARD B. MOORE,

l `Commssoner of Patents.

haying an exhaust port intermediate its ends, s. piston, a passage inthe piston during a portion ot the exhaust 10 hollow piston rod adaptedto gerve as an auxiliary exhaust stroke. means, and means at the outerend ot said piston for con- In testimony whereof. I have signed my nameto this trolling sind Passagspezication in the presence of twosubscribing witnesses.

11. An internal combustion engine comprising a cylinder, a. pistonlocated therein, a. plstonrod having a pas- HEINRICH ALBEPT WALTERDRECHSLEB" sage extending throughout its length, and n pin rotatablyWitnesses: mounted in the outer end of the piston rod, said pin beingGmonnPmnnl,

- provided with a passage adnpted-to communicate with the PAUL lhssnr.

It is hereby certified that in Letters luatent No. 864,086, grantedAugust 20; 1907, upon the application of Heinrich Albert WaiterDrechsler, of Munedorf, Switzerland, for an improvement inInternal-Combustion Engines, errors appear `in the printed specificationrequiring correction', as follows: On page 2, line 66, the word Theshould rbe inserted at the beginning of the line, and in seme line, theVword venging should 4 read scavenging; and that the said Letters atentshould be Jread with these corrections therein that the same may conformtothe record of the casein the Patent Oiee.,

Signed and sealed this 15th day of October, AID., 19Q7.

[SEAL] EDWARD B. MOORE,

l `Commssoner of Patents.

Corrections in Letters Patent No. 864,086.

It is hereby certified that in Letters Patent No. 864,086, grantedAugust 20, 1907,

upon the application of Heinrich Albert Walter Drechsler, of Minnedorf,Switzerland,

for an improvement in Internal-Combustion Engines, errors appear in theprinted specification requiring correction, as follows: On page 2, line66, the word The should be inserted at the beginning ofthe line, and inSame line, the word venging should read scavenging; and that the saidLetters Patent should beread with these corrections therein that thesame may conform to the record of the case in the Patent Oice.

Signed and sealed this 15th day of October, A.D., 1907.

EDWARD B. MOORE,

Commissioner of Patents.

[SEAL]

